US20120156540A1 - Rechargeable Battery with Heat Sink - Google Patents
Rechargeable Battery with Heat Sink Download PDFInfo
- Publication number
- US20120156540A1 US20120156540A1 US12/969,609 US96960910A US2012156540A1 US 20120156540 A1 US20120156540 A1 US 20120156540A1 US 96960910 A US96960910 A US 96960910A US 2012156540 A1 US2012156540 A1 US 2012156540A1
- Authority
- US
- United States
- Prior art keywords
- heat sink
- rechargeable battery
- fins
- battery
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000004020 conductor Substances 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the invention relates to batteries, particularly to batteries with heat sinks.
- FIG. 1 A typical rechargeable battery is shown in FIG. 1 .
- the rechargeable battery 10 has a battery body 101 .
- a surface of the battery body 101 is smooth.
- the heat from the battery 10 is conducted onto the surface to dissipate out.
- the battery 10 is used in a closed room, which is disadvantageous to heat dissipation. As abovementioned, the insufficient heat dissipation ability will make the battery temperature increasing and reduce the performance of batteries.
- An object of the invention is to provide a rechargeable battery with heat sink, which can improve the heat dissipation ability of rechargeable battery to efficiently dissipate the heat from the battery.
- the rechargeable battery of the invention includes a battery body and heat sink thereon.
- the heat sink is provided with a plurality of longitudinal fins.
- a longitudinal trough is formed between each two adjacent fins.
- An annular trough is formed transversely through the fins.
- the annular trough is orthogonal to the fins.
- the heat sink dissipates the heat from the battery body by means of the fins, longitudinal trough and annular trough.
- FIG. 1 is schematic view of a conventional battery
- FIG. 2 is a perspective view of the invention
- FIG. 3 is a cross-sectional view of the invention
- FIG. 4 a partial side view of the invention
- FIG. 5 is a partially enlarged cross-sectional view of another embodiment of the fins
- FIG. 6 is a partially enlarged cross-sectional view of still another embodiment of the fins.
- FIG. 7 is a partially enlarged cross-sectional view of yet another embodiment of the fins.
- FIG. 8 is a side view of another embodiment of the annular trough.
- FIG. 9 is a cross-sectional view of another embodiment of the battery body.
- the battery 1 includes a battery body 11 .
- the battery body 11 is of a cylindrical shape.
- the battery body 11 is filled with one or more electrochemical cells.
- One end of the battery body 11 is provided with an electrode plug 12 for connecting electricity.
- a surface of the battery body 11 is provided with a heat sink 13 .
- the heat sink 13 is made of great thermo-conductive material such as aluminum.
- the heat sink 13 has a plurality of fins 131 which are radially arranged as shown in FIG. 3 .
- a longitudinal trough 132 is formed between each two adjacent fins 131 to promote air convection.
- At least one annular trough 133 is transversely formed on the heat sink 13 through the fins 131 .
- the annular troughs 133 are orthogonal to the longitudinal troughs 132 .
- the heat resulting from the charge or discharge reaction of the battery body 11 will be conducted onto the heat sink 13 and dissipated via not only the fins 131 but also the longitudinal troughs 132 and annular troughs 133 .
- air will flow along the longitudinal troughs 132 and annular troughs 133 to carry heat away from the fins 131 .
- the temperature of the battery 1 may be lowered and the performance thereof may also be improved.
- the heat sink 13 on the battery body 11 can increase the surface area for heat exchange. Further, the longitudinal troughs 132 and annular troughs 133 may provide air convection so that the heat may be efficiently dissipated.
- T 2 and T 1 are temperature at two ends of the heat sink.
- the heat which is transferred by conduction, Q is proportional to the product of the temperature difference and the cross-sectional area through which heat is transferred. That is, when the cross-sectional area increases, the heat which is carried away by the heat sink proportionally increases. Therefore, the heat from the battery body 11 can be indeed dissipated.
- the cross-section of the fins 131 may also be trapezoidal (as shown in FIG. 5 ), triangular (as shown in FIG. 6 ) or semicircular (as shown in FIG. 7 ).
- the annular trough 133 may also be spirally disposed on the heat sink 13 as shown in FIG. 8 .
- the battery body 11 may also be square as shown in FIG. 9 .
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The rechargeable battery includes a battery body and heat sink thereon. The heat sink is provided with a plurality of longitudinal fins. A longitudinal trough is formed between each two adjacent fins. An annular trough is formed transversely through the fins. The annular trough is orthogonal to the fins. The heat sink dissipates the heat from the battery body by means of the fins, longitudinal trough and annular trough.
Description
- 1. Technical Field
- The invention relates to batteries, particularly to batteries with heat sinks.
- 2. Related Art
- With the popularity of portable electronic devices, batteries play an important role. A usable time and cost of electric power of a portable electronic device depends on performance of batteries. Thus rechargeable batteries have become absolutely necessary.
- Unavoidably, the charge or discharge of rechargeable batteries must invite an exothermic reaction. This will make the internal temperature of rechargeable batteries rise. Those warm or hot batteries will generate a thermal resistance to reduce their performance. Thus, to keep performance of the rechargeable batteries stable, the solution of heat dissipation of the rechargeable batteries is a key point.
- A typical rechargeable battery is shown in
FIG. 1 . Therechargeable battery 10 has abattery body 101. A surface of thebattery body 101 is smooth. The heat from thebattery 10 is conducted onto the surface to dissipate out. Usually, thebattery 10 is used in a closed room, which is disadvantageous to heat dissipation. As abovementioned, the insufficient heat dissipation ability will make the battery temperature increasing and reduce the performance of batteries. - An object of the invention is to provide a rechargeable battery with heat sink, which can improve the heat dissipation ability of rechargeable battery to efficiently dissipate the heat from the battery.
- To accomplish the above object, the rechargeable battery of the invention includes a battery body and heat sink thereon. The heat sink is provided with a plurality of longitudinal fins. A longitudinal trough is formed between each two adjacent fins. An annular trough is formed transversely through the fins. The annular trough is orthogonal to the fins. The heat sink dissipates the heat from the battery body by means of the fins, longitudinal trough and annular trough.
-
FIG. 1 is schematic view of a conventional battery; -
FIG. 2 is a perspective view of the invention; -
FIG. 3 is a cross-sectional view of the invention; -
FIG. 4 a partial side view of the invention; -
FIG. 5 is a partially enlarged cross-sectional view of another embodiment of the fins; -
FIG. 6 is a partially enlarged cross-sectional view of still another embodiment of the fins; -
FIG. 7 is a partially enlarged cross-sectional view of yet another embodiment of the fins; -
FIG. 8 is a side view of another embodiment of the annular trough; and -
FIG. 9 is a cross-sectional view of another embodiment of the battery body. - Please refer to
FIG. 2 . As can be seen, thebattery 1 includes abattery body 11. In this embodiment, thebattery body 11 is of a cylindrical shape. Thebattery body 11 is filled with one or more electrochemical cells. One end of thebattery body 11 is provided with anelectrode plug 12 for connecting electricity. A surface of thebattery body 11 is provided with aheat sink 13. Theheat sink 13 is made of great thermo-conductive material such as aluminum. Theheat sink 13 has a plurality offins 131 which are radially arranged as shown inFIG. 3 . Alongitudinal trough 132 is formed between each twoadjacent fins 131 to promote air convection. - Please refer to
FIG. 4 . At least oneannular trough 133 is transversely formed on theheat sink 13 through thefins 131. In this embodiment, there are threeannular troughs 133. Theannular troughs 133 are orthogonal to thelongitudinal troughs 132. Thus the heat resulting from the charge or discharge reaction of thebattery body 11 will be conducted onto theheat sink 13 and dissipated via not only thefins 131 but also thelongitudinal troughs 132 andannular troughs 133. As can be seen inFIG. 4 , air will flow along thelongitudinal troughs 132 andannular troughs 133 to carry heat away from thefins 131. By the heat dissipation of theheat sink 13, the temperature of thebattery 1 may be lowered and the performance thereof may also be improved. - The
heat sink 13 on thebattery body 11 can increase the surface area for heat exchange. Further, thelongitudinal troughs 132 andannular troughs 133 may provide air convection so that the heat may be efficiently dissipated. - According to Fourier's law of heat conduction:
-
Q=−kA(T 2 −T 1) - where k is a proportional constant, A is a cross-sectional area through which heat is transferred and T2 and T1 are temperature at two ends of the heat sink.
- In other words, the heat which is transferred by conduction, Q, is proportional to the product of the temperature difference and the cross-sectional area through which heat is transferred. That is, when the cross-sectional area increases, the heat which is carried away by the heat sink proportionally increases. Therefore, the heat from the
battery body 11 can be indeed dissipated. - Additionally, besides rectangular as shown above, the cross-section of the
fins 131 may also be trapezoidal (as shown inFIG. 5 ), triangular (as shown inFIG. 6 ) or semicircular (as shown inFIG. 7 ). - The
annular trough 133 may also be spirally disposed on theheat sink 13 as shown inFIG. 8 . Thebattery body 11 may also be square as shown inFIG. 9 . - Those skilled in the art will appreciate that numerous changes and modifications can be made to the preferred embodiments of the invention, and that such changes and modifications can be made without departing from the spirit of the invention.
Claims (9)
1. A rechargeable battery comprising:
a battery body;
a heat sink, disposed on the battery body, having a plurality of fins radially arranged, wherein a longitudinal trough is formed between each two adjacent fins.
2. The rechargeable battery of claim 1 , wherein an annular trough is disposed on the heat sink through the fins and the longitudinal troughs.
3. The rechargeable battery of claim 1 , wherein the heat sink is made of thermo-conductive material.
4. The rechargeable battery of claim 1 , wherein a cross-section of the fin is square.
5. The rechargeable battery of claim 1 , wherein a cross-section of the fin is trapezoidal.
6. The rechargeable battery of claim 1 , wherein a cross-section of the fin is triangular.
7. The rechargeable battery of claim 1 , wherein a cross-section of the fin is semicircular.
8. The rechargeable battery of claim 1 , wherein the battery body is of a cylindrical shape.
9. The rechargeable battery of claim 1 , wherein the battery of is a right prism in shape.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010008184U JP3166283U (en) | 2010-09-07 | 2010-12-16 | Rechargeable battery with heat dissipation |
US12/969,609 US20120156540A1 (en) | 2010-09-07 | 2010-12-16 | Rechargeable Battery with Heat Sink |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW99217289 | 2010-09-07 | ||
US12/969,609 US20120156540A1 (en) | 2010-09-07 | 2010-12-16 | Rechargeable Battery with Heat Sink |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120156540A1 true US20120156540A1 (en) | 2012-06-21 |
Family
ID=52000481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/969,609 Abandoned US20120156540A1 (en) | 2010-09-07 | 2010-12-16 | Rechargeable Battery with Heat Sink |
Country Status (2)
Country | Link |
---|---|
US (1) | US20120156540A1 (en) |
JP (1) | JP3166283U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013076373A1 (en) * | 2011-11-23 | 2013-05-30 | Kemppi Oy | Battery-operated welding and / or cutting device and a cooling profile |
WO2014040734A2 (en) * | 2012-09-13 | 2014-03-20 | Daimler Ag | Insulation of electrochemical energy storage devices |
CN109524747A (en) * | 2018-11-26 | 2019-03-26 | 湖南衡盈电子科技有限公司 | Portable battery |
US20220367988A1 (en) * | 2021-05-17 | 2022-11-17 | ESKP3 Pty Ltd | Button battery |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5712697B2 (en) * | 2010-03-24 | 2015-05-07 | 三菱エンジニアリングプラスチックス株式会社 | Heat dissipation structure of heat dissipation member and heating element |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1766026A (en) * | 1924-07-17 | 1930-06-24 | Gould Storage Battery Co | Method and apparatus for cooling electrolytic cells and the like |
US5492779A (en) * | 1994-10-24 | 1996-02-20 | General Motors Corporation | Heat dissipating battery |
US5501916A (en) * | 1993-04-15 | 1996-03-26 | Sony Corporation | Battery having a through-hole and heat dissipating means |
JPH10106514A (en) * | 1996-09-26 | 1998-04-24 | Nissan Motor Co Ltd | Cylindrical secondary battery and battery pack using this secondary battery |
US20040058233A1 (en) * | 2002-09-20 | 2004-03-25 | Matsushita Electric Industrial Co., Ltd. | Battery pack |
US6811921B2 (en) * | 2000-02-25 | 2004-11-02 | Matsushita Electric Industrial Co., Ltd. | Battery pack |
US20060063067A1 (en) * | 2004-09-21 | 2006-03-23 | Yong-Sam Kim | Secondary battery and secondary battery module with the same |
US20070134550A1 (en) * | 2002-12-27 | 2007-06-14 | Matsushita Electric Industrial Co., Ltd. | Prismatic sealed rechargeable battery, battery module, and battery pack |
US20070141452A1 (en) * | 2005-12-19 | 2007-06-21 | Yong-Sam Kim | Rechargeable battery and battery module |
US20080268333A1 (en) * | 2006-12-31 | 2008-10-30 | Joseph Barrella | Integral battery thermal management |
US20100297483A1 (en) * | 2007-06-21 | 2010-11-25 | Toshiyuki Kawai | Electric storage device and vehicle |
-
2010
- 2010-12-16 US US12/969,609 patent/US20120156540A1/en not_active Abandoned
- 2010-12-16 JP JP2010008184U patent/JP3166283U/en not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1766026A (en) * | 1924-07-17 | 1930-06-24 | Gould Storage Battery Co | Method and apparatus for cooling electrolytic cells and the like |
US5501916A (en) * | 1993-04-15 | 1996-03-26 | Sony Corporation | Battery having a through-hole and heat dissipating means |
US5492779A (en) * | 1994-10-24 | 1996-02-20 | General Motors Corporation | Heat dissipating battery |
JPH10106514A (en) * | 1996-09-26 | 1998-04-24 | Nissan Motor Co Ltd | Cylindrical secondary battery and battery pack using this secondary battery |
US6811921B2 (en) * | 2000-02-25 | 2004-11-02 | Matsushita Electric Industrial Co., Ltd. | Battery pack |
US20040058233A1 (en) * | 2002-09-20 | 2004-03-25 | Matsushita Electric Industrial Co., Ltd. | Battery pack |
US20070134550A1 (en) * | 2002-12-27 | 2007-06-14 | Matsushita Electric Industrial Co., Ltd. | Prismatic sealed rechargeable battery, battery module, and battery pack |
US20060063067A1 (en) * | 2004-09-21 | 2006-03-23 | Yong-Sam Kim | Secondary battery and secondary battery module with the same |
US20070141452A1 (en) * | 2005-12-19 | 2007-06-21 | Yong-Sam Kim | Rechargeable battery and battery module |
US20080268333A1 (en) * | 2006-12-31 | 2008-10-30 | Joseph Barrella | Integral battery thermal management |
US20100297483A1 (en) * | 2007-06-21 | 2010-11-25 | Toshiyuki Kawai | Electric storage device and vehicle |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013076373A1 (en) * | 2011-11-23 | 2013-05-30 | Kemppi Oy | Battery-operated welding and / or cutting device and a cooling profile |
US20140319111A1 (en) * | 2011-11-23 | 2014-10-30 | Kemppioy | Battery-operated welding and/or cutting device and a cooling profile |
US9308605B2 (en) * | 2011-11-23 | 2016-04-12 | Kemppi Oy | Battery-operated welding and/or cutting device and a cooling profile |
WO2014040734A2 (en) * | 2012-09-13 | 2014-03-20 | Daimler Ag | Insulation of electrochemical energy storage devices |
WO2014040734A3 (en) * | 2012-09-13 | 2014-06-26 | Daimler Ag | Insulation of electrochemical energy storage devices |
CN109524747A (en) * | 2018-11-26 | 2019-03-26 | 湖南衡盈电子科技有限公司 | Portable battery |
US20220367988A1 (en) * | 2021-05-17 | 2022-11-17 | ESKP3 Pty Ltd | Button battery |
Also Published As
Publication number | Publication date |
---|---|
JP3166283U (en) | 2011-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |